/**
 * plugin.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2015 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/*global tinymce:true */

tinymce.PluginManager.add('advlist', function (editor) {
    var olMenuItems, ulMenuItems, lastStyles = {};

    function buildMenuItems(listName, styleValues) {
        var items = [];

        tinymce.each(styleValues.split(/[ ,]/), function (styleValue) {
            items.push({
                text: styleValue.replace(/\-/g, ' ').replace(/\b\w/g, function (chr) {
                    return chr.toUpperCase();
                }),
                data: styleValue == 'default' ? '' : styleValue
            });
        });

        return items;
    }

    olMenuItems = buildMenuItems('OL', editor.getParam(
        "advlist_number_styles",
        "default,lower-alpha,lower-greek,lower-roman,upper-alpha,upper-roman"
    ));

    ulMenuItems = buildMenuItems('UL', editor.getParam("advlist_bullet_styles", "default,circle,disc,square"));

    function applyListFormat(listName, styleValue) {
        editor.undoManager.transact(function () {
            var list, dom = editor.dom, sel = editor.selection;

            // Check for existing list element
            list = dom.getParent(sel.getNode(), 'ol,ul');

            // Switch/add list type if needed
            if (!list || list.nodeName != listName || styleValue === false) {
                editor.execCommand(listName == 'UL' ? 'InsertUnorderedList' : 'InsertOrderedList');
            }

            // Set style
            styleValue = styleValue === false ? lastStyles[listName] : styleValue;
            lastStyles[listName] = styleValue;

            list = dom.getParent(sel.getNode(), 'ol,ul');
            if (list) {
                dom.setStyle(list, 'listStyleType', styleValue ? styleValue : null);
                list.removeAttribute('data-mce-style');
            }

            editor.focus();
        });
    }

    function updateSelection(e) {
        var listStyleType = editor.dom.getStyle(editor.dom.getParent(editor.selection.getNode(), 'ol,ul'), 'listStyleType') || '';

        e.control.items().each(function (ctrl) {
            ctrl.active(ctrl.settings.data === listStyleType);
        });
    }

    editor.addButton('numlist', {
        type: 'splitbutton',
        tooltip: 'Numbered list',
        menu: olMenuItems,
        onshow: updateSelection,
        onselect: function (e) {
            applyListFormat('OL', e.control.settings.data);
        },
        onclick: function () {
            applyListFormat('OL', false);
        }
    });

    editor.addButton('bullist', {
        type: 'splitbutton',
        tooltip: 'Bullet list',
        menu: ulMenuItems,
        onshow: updateSelection,
        onselect: function (e) {
            applyListFormat('UL', e.control.settings.data);
        },
        onclick: function () {
            applyListFormat('UL', false);
        }
    });
});